Finding the Fourth Proportional to 324.62, 486.62 and 119.13
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Solution
The fourth proportional to 324.62, 486.62 and 119.13 is: 178.58
Step by Step Solution
- Step 1: Write the proportion equation
324.62 : 486.62 = 119.13 : x - Step 2: Convert to fraction form
324.62/486.62 = 119.13/x - Step 3: Cross multiply
324.62x = 486.62 × 119.13 - Step 4: Simplify right side
324.62x = 57,970.10 - Step 5: Solve for x
x = 57,970.10/324.62 - Step 6: Final answer
x = 178.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.